Pin descriptions
STM32L151xC/C-A STM32L152xC/C-A
44/133
DocID026119 Rev 5
114
C9
81
-
-
PD0
I/O
FT
PD0
TIM9_CH1/SPI2_NSS/
I2S2_WS
-
115
B9
82
-
-
PD1
I/O
FT
PD1
SPI2_SCK/I2S2_CK -
116
C8
83 54 A3
PD2
I/O
FT
PD2
TIM3_ETR/LCD_SEG31/
LCD_SEG43/LCD_COM7
-
117
B8
84
-
-
PD3
I/O
FT
PD3
SPI2_MISO/USART2_CTS
-
118
B7
85
-
-
PD4
I/O
FT
PD4
SPI2_MOSI/I2S2_SD/
USART2_RTS/
-
119
A6
86
-
-
PD5
I/O
FT
PD5
USART2_TX
-
120
F7
-
-
-
V
SS_10
S
-
V
SS_10
-
-
121 G7
-
-
-
V
DD_10
S
-
V
DD_10
-
-
122
B6
87
-
-
PD6
I/O
FT
PD6
USART2_RX -
123
A5
88
-
-
PD7
I/O
FT
PD7
TIM9_CH2/USART2_CK -
124 D9
-
-
-
PG9
I/O
FT
PG9
-
-
125 D8
-
-
-
PG10
I/O
FT
PG10
-
-
126
-
-
-
-
PG11
I/O
FT
PG11
-
-
127 D7
-
-
-
PG12
I/O
FT
PG12
-
-
128 C7
-
-
-
PG13
I/O
FT
PG13
-
-
129 C6
-
-
-
PG14
I/O
FT
PG14
-
-
130
-
-
-
-
V
SS_11
S
-
V
SS_11
-
-
131
-
-
-
-
V
DD_11
S
-
V
DD_11
-
-
132
-
-
-
-
PG15
I/O
FT
PG15
-
-
133
A8
89 55 A4
PB3
I/O
FT
JTDO
TIM2_CH2/SPI1_SCK/
SPI3_SCK/ I2S3_CK/
LCD_SEG7/JTDO
COMP2_INM
134
A7
90 56 B4
PB4
I/O
FT
NJTRST
TIM3_CH1/SPI1_MISO/
SPI3_MISO/
LCD_SEG8/NJTRST
COMP2_INP
Table 8. STM32L151xC/C-A and STM32L152xC/C-A pin definitions (continued)
Pins
Pin name
Pin T
ype
(1
)
I / O stru
ctu
re
Main
function
(2)
(after reset)
Pin functions
LQ
FP14
4
UFBGA
132
LQ
FP10
0
LQ
FP6
4
WLC
S
P6
4
Alternate functions
Additional
functions